Improvement in paper boxes



D. LIBRRY.

\ Paper-Box.

No. 221,165. Patented Nov. 4,1879.

3 v Q v Z 2 62 6 (Z i WITNESSES. INYVENTOR.

N.PETEB5, FNOTO-LITHOGRAPHER, WASNXNGTON a c 'NITEDSTATES "PATENT "OFF oE; f

.DANIEL J. FERRY, OF PHILADELPHIA, PENNSYLVANIA.

IMPROVEMENT IN PAPER BOXES.

Specification forming part of Letters Patent No. 221,165, dated November 4, 1879 application tiled September 29, 1879. Y

To all whom it may concern Be it known that I, DANIEL J. FERRY, of the city and county of Philadelphia, in the State of Pennsylvania, have invented certain new and useful Improvements in Paper Boxes, of which improvements the following is a specification.

My invention relatesto paper or pasteboard boxes formed of a single piece or blank; and.

its object is to provide a box having a simple, effective, and easily-operated end fastening, and which can be manufactured with an economical use of material; to which ends my improvements consist in a blank which is cut and creased in manner as hereinafter described, and a box constructed by folding the several portions of said blank into the form of a solidhaving rectangular surfaces, and securing the ends thereof by tapered lockingflaps, all as hereinafter more fully set forth.

In the accompanying drawings, Figure 1 is a plan view of 'a blank cut and creased in ac- .cordance with my invention; Fig. 2, an iso metrical "iew showing the same folded into a rectangular open-ended tube; Fi 3,a similar view showing the completed box withits ends closed; and Fig. 4:, an end view, in elevation,- of the box.

The blank which I provide for the purpose of carrying out my invention consists of a single piece of paper or pasteboard cut or stamped and creased in the form shown in Fig. 1, referring to which it will be seen that the blank has four plain rectangular body-sec? tions, A A A A, two of which, A and A serve to form the top and the bottom of the box, and the other two, A and A its sides.

Plain rectangular flaps a a and a a adjoin the ends of the sections A and A re spectively, and locking-flaps a a and a? a respectively, adjoin the ends of the sections A and A A connecting-strip, a, adjoins the side of one of the outer bodysections, A or A and serves to enable said section to be connected to the opposite outer body'section by glue, stitching, or metallic fastenings, so as to form the blank into a rectangular open-ended tube. The plain rectangular end flaps, a a and a a serve to close the ends of the box, and the locking-flaps cc and a a fasten 'the end flaps in posit-ion when closed. Each of the locking-flaps a a and a a has a slot, 1/,

formed within it parallel and adjacent to the adjoining edge of the body-section with which it is connected, audits outer side is divided by a central triangular recess, 1), extending onehalf across the flap into two tongues, one of which is symmetrically tapered on both sides, and the other, which is nearest to the slot 1), has one of its sides tapered and one perpendicular to its end. r r

The opposite tongues of the flaps of each of the sections A and A are, respectively, similar in form and dimensions, and the slots 1) are similarly located upon the opposite lockingfiaps of each of the sections A and A, the center of each slot coinciding with the center line of the cloubletapered tongue of one of the locking-flaps of the opposite body-section when the blank is folded into tubular form.

As a result of this construction I am enabled to provide a simple and effective means of locking the end flaps, a a a a", in position when turned in to close the ends of the open tube formed by the union of the two side bod y sections, A and A, each of the double-tapered tongues of the locking-flaps of one body-sec tion entering the slot of one of the lockin g-flaps of the opposite body-section and passing over and bearin g against the single-tapered tongue thereof.

Referring to Fig. 2, it will be seen that the end flaps project from the-sides, and the lock ing flaps from the top and bottom, of the tube or open-ended box therein shown. The ends of the box are closed by turning in the end flaps, a (6, one above the other, and the closed ends are held in position by inserting the doubletapered tongues of the locking-flaps in.

their corresponding slots, as shown in Figs. 3 and 4.

It will be observed that in the applicationof my improvements the waste of material involved in cut-tin g out the blanks is but tritlin g, being only the small amount due to the formation of the tongues of thelocking-flaps and the narrow side connecting-strip.

The lockin g device, which is simple, secure, and of easy operation, presents the advantages of locating the fastenings adjacent to diago= nally-opposite cornersof the box and of bring in g the major portion of the overlapping edges at each end of the box entirely within theperiphcry thereof, so that the same are correspondingly relieved from liability to displacement by the contact of the sides of the box with other articles.

Iclaiin as my invention and desire to se cure by Letters Patent- 1. A box-blank consisting of four rectangular main or body sections, four rectangular end flaps, and four locking-flaps, each lockingfiap having one double-tapered and one sin gletapered tongue and a slot for the reception of the double-tapered tongue of the next adjacent locking-flap, substantially as set forth.

7 2. A box consisting of a blank cut, creased, and folded into a rectangular tube, the ends of which are closed by overlapping end flaps and secured, adjacent to diagonally-opposite corners, by locking-flaps, each of which has a double-tapered tongue entering a slot in a similar flap, substantially as set forth.

3. An end fastening for a paper box, consisting of two locking-flaps of similar form and dimensions, and respectively formed in one piece with the top and with the bottom of the box, each flap having one single-tapered and one double-tapered tongue and a slot, the double-tapered tongue of each flap overlapping the single-tapered tongue of the other and entering the s 0t thereof, substantially as set forth.

DANIEL J. FERRY.

itnesses J. SNoWDEN BELL, GEo. A. VAILLANT. 

